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你们好,我来自中国。我知道这是白宫请愿网，但是我想要一个人工电子耳蜗以重返有声世界。

Created on May 10, 2013

你们好,我来自中国。我知道这是白宫请愿网，但是我想要一个人工电子耳蜗以重返有声世界。

Homeland Security & Defense
  
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